Machine for shaping pieces of dough.



F. AESCHBACH.

MACHINE FOR SHAPING PIECES OF DOUGH.

APPLICAUOH FILED JULY 3.1916.

Patented Oct. 9,1917.

5 SHEETS-SHEET 1 Patented 00a 9,1917.

5 SHEETS-SHEET 2.

F. AESCHBACH. MACHINE FOR SHAPING HECES 0F nous.

APPUCATION FRED IULY 3.18M.

F. AESCHBACH.

MACHINE FOR SHAPING PIECES OF oousn.

APPLICATION FILED JULY 311916.

Patehted Oct. 9,1917.

5 SHEETS-SHEET 3- F. AESCHBACH. MACHINE FOR SHAPING PIECES OF DOUGH.

nrrucmon FILED :uur 3.19m.

5 SHEETS-SHEET 4.

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F. AESCHBACH.

MACHINE FOR SHAPING PlECES 0F DOUGH.

APPLICATION FILED JULY 3.1916.

Patented Oct. 9,1917.

5 SHEETS-SHEET 5- FRIEDRICH AESCHBACH, or AARAU, SWITZERLAND.

MACHINE Eon SHAPING PIECES or DOUGH.

Sptciflcation of Letters Patent.

Patented Oct. 9, 1917.

Application filed July 3, 1916. Serial No. 107,438.

To all whomc't may concern:

Be, it known that I,Fn1eon1cu AESGHBAGH, a citizen of the Republic of Switzerland, residing at Aarau, Switzerland, have invented certain new and useful Improvements in Machines for Shaping Pieces of Dough; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the, same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

There are already known machines for shaping pieces of dough having a pair of endless bands arranged one upon another andbetwecn which the dough pieces are shaped.

The present invention has reference to a machine of this type. ,Themachine accord- 4 '14 of the supports 8 disposed on the left ing to this invention. is adapted for being used for different kinds of work and to produce final products of different shape. This is effected partly by transposing and partly by removing and replacing certain parts of the machine. 1

The accompanying drawings illustrate a convenient mode of carrying the present invention into effect.

Figure 1 shows a side view of the machine,

Fig. ,2 shows a detail of Fig. 1,

Fig."3 is a section on the line AB of Fig. 2,

Fig. 4 shows a further-detail of Fig. 1,

Fig. 5. a section onthe lineGI) of Fig. 1,

Fig. 6- hows a plan view of Fig. 1,

Figs. 7 and 8 illustrate details of Fig. 1 partly in front view and part1 in section,

Fig. 9 shows the machine ilustrated in Fig. 1 after the transposing and replacing of certain parts, and 1 Fig. 10 shows a corresponding plan view,

Fi .'11 shows a section on the'line E-F of Fig. 9, and S. a

Fig. 12 a sectionon the line G-H of Fig. 9, I

Figs. 13 and 14 show an interchangeable part of the machine, while Fig. 15 shows a further detall of the-machine illustrated in Fig. .1,

Figs. 16 and 17 illustrate in particular the manner of operationof the machine in certain' specialcas'cs. r i

4 denotes the lower endless band running over the rollers 2, 3 supported in the machine frame 1. For the purpose of stretching the band 4 the bearings 5 of the roller 3 (Fig. 1) may be adjusted in an equal mannor by means of a chain drive 6 (Fig. 6). 8 are supports movably mounted in vertical guides 7 (Figs. 1, 7 and 8) provided with annular projections 9 with which mesh small toothed wheels 10. On each side of the machine there is provided a horizontal shaft 11 carrying two of said wheels 10. Each shaft 11 carries at one end also a ratchet wheel 12 working together with a pawl 13. The two supports 8 arranged on the same side of the machine may thus be displaced simultaneously in a vertical direction upon a rotation of one of the shafts 11 (Fig. 12). The upper end of the supports 8 is fork shaped (Figs. 7 and S) and each of these ends is provided with a slot 14. The lower part of the slots hand side of the'machine is bent sidewards (Fig. 9). in the same manner as it is the case in a bayonet-joint. The slots 14 are adapted to receive the pins 15 of rods 16 carryin the bearings 17 and 18 (Figs. 6, 9, 1) for t e rollers 19 and 20. 21 denotes the upper endless band, which runs over the rollers 19 and 20. This band 21 is thus arranged crosswise to the band 4. The bearings 18 may also be adjusted simultaneously and in an equal manner by means. of a chain drive 22.

A doublerarmed lever 24 is pivotally mounted on a gudgeon 23 fixed to the frame 1. One end of this lever 24 has a slot 25 into which projects a sliding block 2640f a crank 27 (Figs. 1 and 5) fixed to a shaft 28. On this shaft 28 is also movably mounted a driving pulley 29 (Figs. 1, 2, 3, 9, 10). To the pulley 29 is rigidly connected a chain wheel 30. The boss of the driving pulley 29 (Fig. 3) forms one half of a clutch,' the other. half 31 of which is movably mounted in a fork 82 (Figs. 2 and 3) said clutch half 31 being rotated by tion of the latter. A chain 33 connects the chain wheel 30 to the chain Wheel 34, which is rigidly connected to a pulley 35 and the shaft 28 upon a rotaloosel mounted on the shaft 36 of the roller 12. T e ulley 35 forms also one half of a .fork 32 and isrotated by theshaft 36 upona rotation Qf llllel use. Am auras tea a,

(Figs. 2, 9 and 10) guided in an appropriate manner by means of pulleys 39 passes over a pulley 40, which is'iixed"tothe shaft 41 of the roller 1!). The guide ,palleys 39 are morillJl. mounted in a fork 39, which may be inserted in a l'emovahlemanner into the frame of the machine.

T0 the end of the arm provided with the slot is pivotally connected a lever 42 (Figs. 1, 9 amide), the upper end of which is ivotally connected to a feeding plate 43 (Figs. 1, 9 and 4) adapted to oscillate aboutthe shaft 36 of the roller 2. To the feeding plate 43 is pivotally mounted a pawl 44 working together with a ratchet wheel 45, which is fixed to theshaft 36.

To the other end of the double-armed lever 24 is movably mounted a lateral forklilro member 46, to which is pivotally secured in a detachablemanner by means of a removable pin 47 one end of a rod 48 (Fig. 1), the other end of which is pivotally connected, in the same manner as the lever 42,

. to a feeding plate 49 (Figs. 1 and 9), which is also provided, in the same manner as the feeding plate 13 shown in Fig. 4, with a pawl 50-working together with a ratchet wheel: 51, which is fixed to the shaft l1 of the roller-19,

Let it be' assn'mei that all parts are in the'position shown in Figs. 1*6, and that the belt -38-has been removed and the clutch half 31 thrown into theoperative position. Upon a rotation of the driving pulley 29 the crank 2-? is then rotated, so that'the lever 24 is oscillated upward and downward. Upona lifting of that end of the lever 24, whi'oh 'in Fig. 1 is on the right hand side, the pawl t causes the toothed wheel to rotate to an amount corresponding to the distance between twofb l'lowing teeth of this wheel, so that the band i is fed somewhat forward in the direction of the arrow shown in-Fi H1. The 'pawl't'il slides thereby-idle oven 1; e ratchet whee-1 51 anddoes not were any abtiowu pon this'wheel so that the band enemas stationary. Upon: a downward movement of the 'right hand azrm' of the iever"24," the left hand-arm of-the latteris fitted, so that the pawl 44 slides noavidle over ithe wheel 41%, so that the 'band 4remainsetaticmary while the pawl causes a rotation o'f the ratchet' wheelfrl to an amount 'corresponding to the distance betweenFtwo cfollowingteebh of this wheel 51, so that a feed in movement is imparted to the bai-m'tfll in 'he direction of 'the mows show n Fig.5. 1" and 6; The two bands 45' and '21, 'whidh in this ease are an-tinged crosswise, 1 i are. thus moved separately and alternatelyat the: same speed, so that the pieces at doughg whicheomo' tmhoble a 5" idie enpressibn balls there- *mafy be under elu tch they are paralllel; disconnected from i the lever-24, as showm 1n 'Fig. 9. Further, the fork 39 (Fig. 2) ear pieces are rolle w these bwnds, alre formedinto' balis. "Wilder V ""frame be turned through an angieofemtly -14; 0-

stoo d'll of sour-5e, also :smoih Jform's. hawing only approximately the shape of a ball.

Should, howeyer, the belt 38 be passed over the piilleys 35, 39 and 40 and the Bltlipown out of gear and the clutch hal 37 "into gear, the chain wheel 3,0 will cause a rotation of the chain wheel 34 and hence of the shaft 36 and the rollerQ and by -means odf the belt 38 also of the roller 19, so that the two bands 4 and 21 are no longer moved step by'step but in a continua-l manner. The bands will still move in the' direction inclicatedhy the arrews'i-n Figs. 1- and 6, but the band 4 will travel at twice the speed of the band21, due tothe fact that the *d-iameterof-the pulley 35 is only half the diameter of the pulley). In this case the piecee of dough are roiled-in the diagonal direction of the two bands, so that the worked dough pieces leaving the 5 machine have not the shape *of balls but of cylinders. It is not absolutely necessary that the bands cross at right angles, these bands may also cross at an acute angle.

It may also happen, that there have to be rolled longer cylindersof dough' than it is possible to roll in the described manner by means of crossing endless bands receiving an uninterrupted feed movement. To-this end the upperframe termed by the rodslfi, the bearings 17 l 8 aaid the cylinders 19 and 20 is lifted out of the slots 14 of the rods-8 (Figs. 7 amdB) upon the removal of the belt 38' and aiter tlrat the whole frame has been turned' horizontallyabout an angle ott' the pi nsl5 of theshafts ilfi are again lowered into the slots 14 of the supports 8,--s0 that the bands 41 andflll' aire transposed from the position shown in Figs. 1 and 6, in

which they are arranged crosswise, into the position shown in Figs; '9 and 1'0, which The rod 48 is thereby ry-ing'ithe guide pulleyskfll is removed trom the machine frame and'replaced by an arm 'feren't'shapc. l he' be'1t'88' is removed item the pulley-35 and passed" over a pulley-' 5?) 1115 Figs. *9 and, 10) arranged-at the 'dbhe r side of the-shaft 36. Moreovemthe pawis' l l and 50 are set out of o eration.- I=desirad the whole feedingamee athemAQg-Qflt, 5 may be removed. 'EDhebaHd L is now continuailly moved in the direction of the lewenamew shown in-Fig; 9; while band fiis meved -iin the direetion of the upper arrow shown in thisdFigJQg and at ha l f' the speed of band 4, as the diameter ofipuiley 53-ie also haif1125 the diameterof galley 40; so that the dough between bands into long-cylinders iwing 'long breada It "is not i 7 ispensable, that i theupper the frame may also be turned through an 90. From the constructive point of Vie other angle. 7

In a machine of the above described type it is also possible to give to the dough pieces dilferent forms without that the prescribed form, which has to be given to the pieces leaving the machine, is vaifected in an way. This will be best understood by re erring to Figs. 16 and 17. 21 and 4 are the adjacent parts of the bands 21 and 4, which in Fig. 16 are parallel, while in the arrangement shown in Fig. 17 they are arranged crosswise. As shown, the belt part 21 forms a stretched straight path, while the part 4* of the belt 4 is pushed out at certain places of the stretched straight path and moved toward the belt part 21, so that the distance betwen the two belt parts 21 and 4* is different at different places. Said pushing out is effected by means of cylindrical guide pulleys 54 and 55 (Figs. 1, 9, 15, 16, 17) movably mounted at both ends in bearings 56,

which rest on shafts 57. The latter are guided in sleeves 58, fixed to slides 59 adapted to be moved along guide-bars 60. Each shaft 57 works together with a wormwheel 61, which forms a nut and is adapted to be rotated by means of a worm 62. Suitable means prevent any displacement of said worm-wheels 61 in the axial direction of the shafts 57. The worms 62 of two opposite slides 59 are connected by means of arod 63 adapted to be rotated by hand. On each slide 59 is also movably mounted a small toothed wheel 64 working together with a rack 65 fixed to the bar 60. Two opposite toothed wheels 6% are always connected by means of a rod 66 adapted to be rotated by hand. Upon a rotation of a shaft 63 it is thus possible to adjust vertically a guide pulley 54, while upon a rotation of a shaft 66 a horizontal adjustment of one of the guide pulleys may be elfected.

If the bands 21 and 4 are arranged parallel (Fig. 16) the piece of dough having quite an irregular shape comes at I in contact with the band parts 4 and 21 and is then shaped into an approximately cylindrical dough roll II. Hereupon a greater pressure is exerted upon this piece of dough, said pressure increasing from point III to point IV. This increase of the pressure at certain places is particularly of advantage for the treatment of the so called skin of the piece of dough. As soon as the piece of dough is moved behind the guide pulley 55 toward the position V a gradual decrease of the pressure acting upon this piece takes place, so that said piece assumes again more a cylindrical shape.

If the bands 21 and 4: and hence also the adjacent band parts 21 and 4 are crossing, as shown in Fig. 16, so that the pieces leaving the machine have not a cylindrical shape but a ball-likezonmsthe piece of dough I fed forward betweenthehand parts 4 and 21 is shaped between the positions II to III into a flattened round cake. This piece of dough assumes, however, after having been passed over the guide pulley 55, in the positions IV and V again more a ball-like shape.

What I claim is:

1. In a machine for shaping dough, two endless bands arranged crosswise and means for alternately imparting a feed movement to the bands.

2. In a machine for shaping dough, two endless bands arranged crosswise, means for alternately imparting a feed movement to the bands and adapted to be set out of operation and means for imparting a continual feed movement to the bands, this last mentioned means being adapted to be set into operation.

3. In a machine for shaping dough, two endless bands arranged crosswise, means for transposing one band parallel to the other one by an angular displacement in a horizontal plane and means imparting a continual movement to the bands.

4. In a machine for shaping dough, a machine frame, two endless bands arranged. crosswise, a removable frame carrying one of said bands and mounted on the machine frame and capableof being detachably connected to said machine frame upon'an angnlar displacement in a horizontal plane and means for imparting a continual movement to both bands.

5. In a machine for kneading dough, two endless bands arranged crosswise, each band running over two rollers, means for transporting one band parallel to the other b an angular displacement in a horizontal p ane, and means for guiding at least one of the inner sides of the bands between its two rollers at different points at different distances from the inner side of the other endless band.

6. In a machine for shaping dough, two endless bands arranged crosswise one upon another and each of them running over two rollers and means for guiding at least one of the inner sides of the bands between its two rollers at different points at different distances from the inner side of the other endless band.

7. In a machine for shapin dough, a machine frame, two endless bands arranged crosswise and carried by said frame, a driving pulley supported in the machine frame, a double-armed lever pivotally mounted on the machine frame, a crank actuated by said pulley and operatively connected to said lever and ratchet mechanisms actuated by said lever and adapted to impart alternately a step by step motion to said endless bands.

8. In a machine for shaping dough, a frame, two endless bands arranged cross- Wise, a pair of rollers for each band, rods carrying the rollers, supports forthe rods carrying one pair of rollers and provided with hayonet-joint slots for detachahlyconnecting the rods to the supports, means for simultaneously moving said supports in pairs in a vertical direction and means adapted to impart alternately tea roller of each pair of'rollers a step-hy-step movement.

9. in a machine for shaping dough, a frame, two endless hands, a pair of rollers for eachv of said bands, rods carrying'these rollers, supports for the rods carrying one pair of rollers, the last mentioned rollers being detachahly connected to said supports, means for vertically adjusting said supports, a driving pulley supported in the frame, means for transmitting the motion of said pulley to one of said rollers and means fortransmit-ting the motion from this rollertoa roller Working together with another hand than the first mentioned roller.

10. In a machine for shaping dough, a

aframe, two endless bands, each band running over two rollers carried by said frame, a driving pulley supported by the frame, means for transmittlng the 'motion of said pulley;:to the rollers, guide pulleys acting "upon oneside of one of said endless bands and means adapted to-efi'ect a vertical and horizontal displacement of said guide pulleys.

T1. In a machine for shaping dough, a frame, two endless hands, each band running over two rollers, means for varying the -1:elatire,position between each pair of rollers, means "for vertically adjusting one p-air'of' said rollers, this pair of rollers beingadnpted to be transposed "from one positionfintoanother one,a drivingpulley and means for transmitting the motion of this pulley-t0 said rollers.

12? In a machine for shaping dough, a frame, two endless hands, each band 'running over two rollers, means for Varying t'he'relatire position between each pair of rdlle'rsfilneans for vertically adjusting one pair of s'ziidrollers, this pair of rollers being adapted to be transposed from one position into another one, a driving pulley, means for transmitting the motion of this pulley tosaid rollers, guide pulleys acting upon one side of one of said endless hands, a slide for each of these iide pulleys, a track' for the slides proi ide on said frame, means for moving each slide along said track and means for vertically adjusting each guide pulley,

Intestimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

FRIEBRICH AESCHBACH.

Witnesses:

Anson: Dunner, Cs-Br. Gunner.

=Gopies of this patent may be obtained for five cents each; by addressing the "Gvmmlssloner of Patents,

Washington, D. U. 

